Adjustable Support Pin Structure for Fragile Workpiece Holding

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Solution Overview

Problem

Existing workbench devices fail to securely hold fragile objects during assembly and painting/staining processes while minimizing contact points, as traditional vises can damage soft materials and other devices are not suitable for both tasks.

Innovation Solution

An adjustable support device with a vertically adjustable pin housed in a cylindrical main body, featuring external threading and a wheel cap with internal threading, along with a compressible plug and non-slip materials for secure and minimal contact support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional vise is used to securely hold an object, then the object is securely held during assembly, but the object may be damaged due to excessive contact pressure

Engineering Contradiction:
Improvesecure holdingVSAvoiddamage to fragile materials
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The support device features a pin with a small contact surface that concentrates support force at a specific point rather than distributing it across a large area. This localized contact point provides secure holding while minimizing damage to fragile materials like wood, plastics, and fabrics.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The pin is made adjustable in height, allowing the contact point to be positioned at different vertical levels. This parameter adjustment enables the device to accommodate various object sizes and shapes while maintaining secure yet gentle contact.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If a device with large contact surface is used to support an object for painting or staining, then the object is stable, but the object has excessive contact points which can interfere with the work process

Engineering Contradiction:
Improveobject stabilityVSAvoidminimal contact points
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The device uses a pin that contacts the object at a single small point rather than a large surface area. This localized contact provides sufficient stability for painting and staining operations while minimizing interference with the work process and allowing easy access to all surfaces of the object.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The support function is segmented into a discrete pin element rather than a continuous surface. This segmentation allows the object to be supported at specific points without excessive contact, facilitating easier manipulation and access during painting or staining.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If a single device is used for both assembly and painting operations, then device versatility is improved, but device complexity increases

Engineering Contradiction:
Improvemulti-functional capabilityVSAvoidadjustable mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support device is designed to perform multiple functions: securing objects during assembly operations and supporting objects during painting or staining operations. The adjustable pin height and removable plug design enable the same device to adapt to different work requirements without requiring multiple specialized tools.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The device incorporates dynamic elements including an adjustable pin that can be moved to different heights and a removable plug that can be inserted or removed based on operational needs. This dynamic configurability allows the device to adapt to various tasks while maintaining relatively simple construction.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device securely holds objects during assembly and minimizes contact points during painting or staining, preventing damage to fragile materials and accommodating various workbench activities like wood carving and sanding.

Implementation Method 1

the pin point can be a tapered cone with its tip at an uppermost point of the pin

Methodology Applied
Scientific EffectConical geometry force concentration:

Implementation Method 2

the plug can be comprised of a compressible material

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 3

the plug can be comprised of a compressible material and can be tapered from its top to its bottom

Methodology Applied
Scientific EffectCushioning:

Implementation Method 4

the cap grip and the lower grip can be comprised of non-slip materials

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11717943B1Adjustable support device
Publication Date: 2023.08.08 SKLENAR FRED
  • US11717943B1 patent drawing
  • US11717943B1 patent drawing
  • US11717943B1 patent drawing

AI summary

An adjustable support device can include a main body; a pin housed within the main body that is vertically adjustable and has external threading; and a wheel cap attached to the top of the main body and having internal threading, wherein the wheel cap and the pin are threadedly engaged. The adjustable support device can include a plug positioned below the main body; and a shoulder screw configured to removably connect the plug to the main body. The plug can be comprised of a compressible material and can be tapered from its top to its bottom. The shoulder screw can be insertable through the center of the plug, and the shoulder screw can be configured to threadedly connect to an interior of the main body. The adjustable support device can include a cap grip interconnected with external surfaces of the wheel cap; and a lower grip connected to a bottom of the main body.